Directed blow-off Free blow-off Model 595 Model 695 EN · 2019. 7. 23. · Model 595 Model 695 AS...
Transcript of Directed blow-off Free blow-off Model 595 Model 695 EN · 2019. 7. 23. · Model 595 Model 695 AS...
d0=8,00 d0=9,75d0=13,00
Model 595 Model 695
AS AV AS AV AS AV
Full lift safety valvewith spring loading. (AIT)
Free blow-offDirected blow-off
Model 595Model 695
The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entranceto the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “International Standard ISO 4126-1:2004 Safety Valves”.In accordance with the requirements of directive 97/23/EC.EC valve verification certified by: TÜV Internacional Grupo TÜV Rheinland, S.L. EC 1027.Type (Module H1) EC examination report nº 33530455 certified by: TÜV Internacional Grupo TÜV Rheinland, S.L.In compliance with the ATEX 94/9/CE directive “Protective equipment and systems for use in potentially explosiveatmospheres”.Other authorisations: ISCIR, ITI, NASTHOL,...etc.
Specifications
— Model AS without manual discharge operation.— Model AV with hand wheel threaded to the body and fastened to the shaft which allows immediate manual operation.— Activated by direct action helicoid spring.— Simplicity of construction ensuring minimum maintenance.— Internal body designed to offer favourable flow profile.— Seal with a precise finish which guarantees tightness, even greater than that required by DIN-3230.— Sheet 3.— Great discharge capacity. For liquids typically used with openings similar to proportional safety valves.— Totally precise open and close.— All the valves are supplied sealed at the set pressure requested, simulating operational conditions, and are vigorously tested.— All components are numbered, registered and checked. If requested in advance, material, casting, test and efficiency certificates will be enclosed with the valve, and the instruction manual, in accordance with P.E.D.97/23 EC.
EN
IMPORTANT
1.- Fluorelastomer (Vitón) seals or Polyurethane (Vulkollan), achieving leakage levels less than
The ranges of application allow certain flexibility although we recommend limiting them to:
RANGE OF APPLICATION FOR THE SEALS
SET PRESSURE IN barFLUID 0,2 5,0 20,0 36,0
Saturated steam
Liquids and gases
SEALS
F
V
Fluorelastomer (Vitón)
Polyurethane (Vulkollan))
F
F V
TEMPERATURE IN °C
ACCORDING TO MANUFACTURERS RECOMMENDED BY VYC
MINIMUM MAXIMUM MINIMUM MAXIMUM
–40
–265
+250
+90
–30
–80
+150
+80
Depending on demand:1.- Buna-nitryls seals, Butyl, Natural rubber, E.P.D.M., Chlorosulphonate polyethylene (Hypalon),1.- Neoprene, Silicone's rubber, etc.2.- Using the discharge deflector prevents:2.- - The inconvenience of free discharge.2.- - The entry of foreign bodies in the valve which will affect later operation. (Specially desIgned for2.- - moving transport).3.- Possibility of manufacture in other types of material, for use in special working conditions (high3.- temperatures, fluids, etc.).
MATERIAL
BRASS STAINLESS STEELN.o PIECE PIECE
1234
56789
1011121314
BodyPlugShaftSeal
Limiter ringEnd-stopSpring pressSpringSafety washerHand wheelSealing wireCharacteristic plateSealDeflector
Brass (EN-CW617N)Brass (EN-CW617N)Stainless steel (EN-1.4305)Fluorelastomer (Vitón)Polyurethane (Vulkollan)Stainless steel (EN-1.4310)Buna-nitrylBrass (EN-CW617N)Stainless steel (EN-1.4310)Stainless steel (EIN-1.4568)Brass (EN-CW617N)Sealing wireAluminiumPlasticStainless steel (EN-1.4401)
Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)Stainless steel (EN-1.4305)Fluorelastomer (Vitón)Polyurethane (Vulkollan)Stainless steel (EN-1.4310)Buna-nitrylStainless steel (EN-1.4305)Stainless steel (EN-1.4310)Stainless steel (EIN-1.4568)Stainless steel (EN-1.4305)Sealing wireAluminiumPlasticStainless steel (EN-1.4401)
DN
PN
OPERATINGCONDITIONS
3/8" to 1"
PRESSURE IN bar
MAXIMUM TEMP. IN °C
MINIMUM TEMP. IN °C
PMS. 36 bar
36
150
–60
40
36
150
–60
0,3x10–3Pa cm3
sec.
1
2
Model 695d0=8,00
d0=9,75d0=13,00
Model 595
RECOMMENDED RANGES OF APPLICATION
MODEL
SATURATED STEAM
INERT
NON INERT
FLUID GASES
LIQUIDS
MODEL 595 MODEL 695
AS AV AS AV
∗ ∗
∗ ∗
∗ ∗
∗ ∗
∗ ∗
OPENING PRESSURE IN %OF THE SET PRESSURE
CLOSURE PRESSURE IN %OF THE SET PRESSURE
+10%
–10%
MODEL 695
H
H1
h1
A
R1 R2x 3/8" x 1/2" 1/2" x 1/2"Male thread x Female thread
Whitworth gas-tight cylindrical ISO 228/1 1978 (DIN-259)CONNECTIONS
d0
A0=π . d0
4
2
8,00 8,00
50,27 50,27
L1
L2
85 88
93 96
101 104
9 12
26 26
32,50 35,50
AV AS AV AS
BRASS2002-695.
CODE
0,33 0,30 0,34 0,31WEIGHT IN
kgs.
S. STEEL2002-695.
83811 83813 80211 80213
83821 83823 80221 80223
MODEL 595
R1 3/8" 1/2" 1/2" 3/4" 3/4" 1"
CONNECTIONS Whitworth gas-tight cylindrical male thread ISO 228/1 1978 (DIN-259)
d0 8,00 8,00 9,75 9,75 13,00 13,00
50,27 50,27 74,66 132,73 132,7374,66
H 73 76 89 92 113 116
H1 81 84 98 101 123 126
h1 89 92 106 109 132 135
A 9 12 12 15 15 18
B 6,00 6,00 9,50 9,50 11,00 11,00
D 40 40 65 65
S 24 24 36 36 42(41) • 42(41) •
BRASS
STAINLESSSTEEL
BRASS2002-595.
S. STEEL2002-595.
WEI
GHT
IN K
gs.
CO
DE
AV AS AV AS AV AS AV AS AV AS AV AS
0,22 0,19 0,23 0,20 0,52 0,47 0,56 0,50 0,89 0,81 0,94 0,85
0,21 0,18 0,22 0,19 0,49 0,43 0,52 0,47 0,83 0,75 0,88 0,79
8381
1
8381
3
8021
1
8021
3
8021
2
8021
4
8341
1
8341
3
8341
2
8341
4
8101
1
8101
3
8382
1
8382
3
8022
1
8022
3
8022
2
8022
4
8342
1
8342
3
8342
2
8342
4
8102
1
8102
3
• Stainless steel (EN-1.4401).
A0=π . d0
4
2
d0=8,00
d0=9,75d0=13,00
65 65
COEFFICIENT OF DISCHARGE
MODEL
ENTRY CONNECTION
6 x BEXIT CONNECTION
695 595
R1
R2
3/8" 1/2" 3/8" 1/2" 1/2" 3/4" 3/4" 1"
1/2" – – –
– 6 x ø 6,00 6 x ø 9,50 6 x ø 11,00
d0
h
h/d0
SATURATED STEAMGASES
COEFFICIENTOF
DISCHARGEαd LIQUIDS
0,68 0,69 0,79
0,51 – – –(1)
(1) For set pressures less than 3 bar see grapf of discharge coefficient.
DISCHARGE CAPACITY
MODEL 695 595
ENTRYCONNECTION
EXITCONNECTION
R1
R2
6 x B
3/8" 1/2" 3/8" 1/2" 1/2" 3/4" 3/4" 1"
1/2" – – –
– 6 x ø 6,00 6 x ø 9,50 6 x ø 11,00
d0 8,00 8,00 9,75 13,00
50,26 50,26 74,66 132,73
For other, not so dense liquids, other than water at 20°C apply:
IIIIII
- Saturated steam in Kg/h.- Air at 0° C and 1,013 bar in [Nm3/h].- Water at 20° C in l/h.
VA = Water flow according to table.VL = Liquid flow.
ρL = Liquid density.
ρA = Water density at a 20° C.(ρA = 998 Kg/m3).
p[bar]
SET PRESSUREIN bar I II III II II II
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
6,0
7,0
8,0
9,0
10,0
12,0
14,0
16,0
18,0
20,0
22,0
24,0
26,0
28,0
30,0
32,0
34,0
36,0
20
30
41
51
62
72
80
89
98
106
124
141
158
175
192
227
260
293
654
1070
1445
1739
2031
2270
2448
2618
2776
2927
3206
3463
3702
3927
4139
4534
4897
5236
5553
5854
6139
6412
6674
6926
7169
7405
7632
7854
23
38
51
64
78
91
102
113
125
136
159
182
205
227
250
296
342
387
433
478
524
570
615
660
707
752
798
843
23
38
51
64
78
91
102
113
125
136
159
182
205
227
250
296
342
387
433
478
524
570
615
660
707
752
798
843
37
57
78
97
117
136
153
170
188
205
239
273
307
341
376
444
513
581
649
718
786
855
923
991
1060
1128
1195
1264
78
118
159
198
236
277
311
347
381
416
485
555
625
694
763
902
1041
1180
1319
1458
1597
1736
1875
2010
2150
2290
2427
2565
Calculus according to ISO-4126-1:2004 ”Safety valves”.
A0=π . d0
4
2
VL=ρ
Aρ
L. VA
ρL
ρA
VL.ó VA=
13,00
5,50
0,42
9,75
4,00
0,41
8,00
2,50
0,31
MODEL
ENTRY CONNECTION
EXIT CONNECTION
d0
695 595
3/8" 1/2" 3/8" 1/2" 1/2" 3/4" 3/4" 1"R1
R2
6 x B
1/2" – – –
– 6 x ø 6,00 6 x ø 9,50 6 x ø 11,00
8,00 9,75 13,00
MAXIMUM
MINIMUM
PMS. 36 bar
PN-40
PMS. 36 bar
PN-40
36 36 36
36 36 36
0,2 0,2 0,2
0,2 0,2 0,3
0,20 to 0,70
0,60 to 1,60
1,50 to 3,50
3,40 to 5,50
5,40 to 10,00
9,80 to 15,00
SP
RIN
G R
EG
ULA
TIN
G R
AN
GE
IN b
ar CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
56160
56161
56162
56163
56164
56165
56166
56167
56168
56169
56170
56171
56172
56173
56174
56175
56176
56177
56178
56179
56180
56181
56182
56183
56184
56185
56186
14,50 to 20,00
19,00 to 25,00
24,00 to 36,00
SET
PRES
SURE
IN b
arSET PRESSURES AND REGULATING RANGES
pa = Overpressure permitted [bar]pa = absolute.p = Set pressure [bar]pa = absolute.αd = Coefficient of discharge.
Overpressure factorsMultiply the discharge capacity ob-tained from the tables, by thecorrection factor, in order to obtainthe discharge capacity at requiredoverpressure.
1,28
1,26
1,24
1,22
1,20
1,18
1,16
1,14
1,12
1,10
1,08
1,06
1,04
1,02
1,005 10 15 20 25
OVERPRESSURE IN %
% p
WATER
AIRSATURATED STEAM
SATURATEDSTEAMGASES
SATURATED
LIQUIDS
Informative brochure, without obligation and subject to our General Sales Conditions.
89132/07
Founded in 1914
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